SC7314D データシートの表示（PDF） - Silan Microelectronics

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SC7314D

4-CH OUTPUT STEREO AUDIO PROCESSOR WITH 4 STEREO INPUTS AND TONE/VOLUME CONTROL

Silan Microelectronics 

SC7314

SDETAILED DESCRIPTION OF DATA BYTES

1. Volume

MSB

LSB

0

0

B2 B1 B0 A2 A1 A0

0

0

0

0

0

1

0

1

0

0

1

1

1

0

0

1

0

1

1

1

0

1

1

1

0

0

B2 B1 B0 A2 A1 A0

0

0

0

0

0

1

0

1

0

0

1

1

1

0

0

1

0

1

1

1

0

1

1

1

For example, a volume of –45dB is given by: 00100100

2. Speaker attenuators

MSB

LSB

1

1

0

B1 B0 A2 A1 A0

1

1

1

B1 B0 A2 A1 A0

0

0

0

0

0

1

0

1

0

0

1

1

1

0

0

1

0

1

1

1

0

1

1

1

0

0

0

1

1

0

1

1

1

1

1

1

1

For example, attenuation of 25dB on speaker R is given by: 11110100

HANGZHOU SILAN MICROELECTRONICS CO.,LTD

Http: www.silan.com.cn

Function

Volume 1.25dB steps

0

-1.25

-2.5

-3.75

-5

-6.25

-7.5

-8.75

Volume 10dB steps

0

-10

-20

-30

-40

-50

-60

-70

Function

Speaker ATT L

Speaker ATT R

0

-1.25

-2.5

-3.75

-5

-6.25

-7.5

-8.75

0

-10

-20

-30

MUTE

REV:1.1 2007.09.25

Page 9 of 14

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